/* ============================================================================
   My Citibike rides — Citi Bike inspired theme (matches styles.css)
   Self-contained. All rides.js hooks preserved: #year-select/#time-select/
   #day-select, #rides-summary, #stats(.stat/.value/.label/.sub-value), #map,
   .legend(.swatch/.dot), #top-routes(.routes-table), .bars charts (.y-axis/
   .y-tick/.bars-wrap/.gridlines/.gridline/.bar-fill/.chart-empty), #heatmap(.heat),
   .cb-station, .cb-arrow.
   ============================================================================ */

:root {
  --cb-blue:        #1A66B0;
  --cb-blue-dark:   #134E86;
  --cb-blue-tint:   #E8F1FA;
  --cb-blue-line:   #C6DCF0;
  --cb-red:         #E0301E;

  --ink:            #16202E;
  --ink-subtle:     #586172;
  --bg:             #EEF2F6;
  --surface:        #FFFFFF;
  --line:           #DFE5EC;
  --line-strong:    #CAD3DE;

  /* used by chart bars, station dots, arc legend swatch, heatmap */
  --ride:   #1A66B0;
  --origin: #E0301E;

  --radius-card: 14px;
  --radius-ctrl: 9px;
  --shadow-card: 0 1px 2px rgba(16,32,46,0.06), 0 6px 18px rgba(16,32,46,0.06);
  --shadow-pop:  0 6px 24px rgba(16,32,46,0.16);

  --font: 'Overpass', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { font-size: 16px; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.ic { fill: currentColor; flex: none; display: inline-block; }

/* ---------------- hero banner ---------------- */
.hero { background: var(--cb-blue); color: #fff; }
.hero-top {
  max-width: 980px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #fff; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 11px;
  background: rgba(255,255,255,0.16); flex: none;
}
.brand-mark svg { width: 26px; height: 26px; fill: #fff; }
.brand-name {
  display: flex; align-items: baseline; gap: 8px;
  font-size: 1.3rem; font-weight: 800; letter-spacing: -0.01em; line-height: 1;
  white-space: nowrap;
}
.brand-word { white-space: nowrap; flex: none; }
.brand-sub {
  font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.14em;
  color: rgba(255,255,255,0.7);
  padding: 3px 8px; border: 1px solid rgba(255,255,255,0.4); border-radius: 999px;
}
.topbar-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.95rem; font-weight: 600; color: #fff; text-decoration: none;
  padding: 9px 16px; border-radius: 999px; background: rgba(255,255,255,0.14);
  white-space: nowrap; transition: background 120ms ease;
}
.topbar-link:hover { background: rgba(255,255,255,0.26); }
.topbar-link .ic { width: 18px; height: 18px; }

.hero-body { max-width: 980px; margin: 0 auto; padding: 18px 24px 48px; }
.eyebrow {
  display: inline-block; font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.8); margin-bottom: 12px;
}
.hero h1 { margin: 0; font-size: 2.9rem; line-height: 1.05; font-weight: 800; letter-spacing: -0.02em; }
.hero .sub { margin: 16px 0 0; max-width: 64ch; font-size: 1.18rem; line-height: 1.45; color: rgba(255,255,255,0.9); }
.hero .sub a { color: #fff; font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }

/* ---------------- main + cards ---------------- */
main { max-width: 980px; margin: 0 auto; padding: 0 24px 56px; }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 26px 28px;
  margin-top: 22px;
}
.card:first-child { margin-top: -28px; }

.section-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
}
.section-title { display: flex; align-items: center; gap: 13px; flex: none; }
.section-title h2 { margin: 0; font-size: 1.5rem; font-weight: 700; letter-spacing: -0.01em; color: var(--ink); white-space: nowrap; }
.section-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 11px; flex: none;
}
.section-icon .ic { width: 22px; height: 22px; }
.section-icon.live  { background: var(--cb-blue-tint); color: var(--cb-blue); }
.section-icon.trips { background: #FDF1DC; color: #C77400; }

/* ---------------- buttons (parity with index) ---------------- */
button {
  font: inherit; font-weight: 700;
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--cb-blue); background: var(--cb-blue); color: #fff;
  border-radius: 999px; padding: 9px 18px; cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease;
}
button:hover { background: var(--cb-blue-dark); border-color: var(--cb-blue-dark); }
button:focus-visible { outline: 3px solid var(--cb-blue-line); outline-offset: 2px; }

/* ---------------- stats strip ---------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-top: 20px;
}
.stat {
  background: #F5F8FB;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 15px 16px;
}
.stat .value { font-size: 1.7rem; font-weight: 800; line-height: 1.1; font-variant-numeric: tabular-nums; color: var(--cb-blue); letter-spacing: -0.01em; }
.stat .label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; color: var(--ink-subtle); margin-top: 5px; }
.stat .sub-value { font-size: 0.82rem; color: var(--ink-subtle); margin-top: 3px; }

/* ---------------- map ---------------- */
#map {
  height: 520px;
  margin-top: 22px;
  border-radius: var(--radius-ctrl);
  border: 1px solid var(--line);
  overflow: hidden;
  z-index: 0;
}
.leaflet-container { font: inherit; background: var(--line); }
.leaflet-control-zoom a {
  border-radius: 8px !important; color: var(--ink);
  box-shadow: var(--shadow-pop); border: none;
}
.leaflet-bar { border: none; box-shadow: none; }
.leaflet-popup-content-wrapper { border-radius: 12px; box-shadow: var(--shadow-pop); }
.leaflet-popup-content { margin: 13px 15px; font-size: 0.9rem; line-height: 1.5; }
.leaflet-popup-content strong { font-weight: 700; }

/* ---------------- legend ---------------- */
.legend {
  display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 16px;
  font-size: 0.9rem; font-weight: 500; color: var(--ink-subtle); align-items: center;
}
.legend i { font-style: normal; }
.swatch {
  display: inline-block; width: 22px; height: 0;
  border-top: 3px solid var(--ride); vertical-align: 4px; margin-right: 4px;
}
.dot { display: inline-block; width: 13px; height: 13px; border-radius: 50%; vertical-align: -2px; margin-right: 3px; }
.dot.station { background: var(--ride); border: 2px solid #fff; box-shadow: 0 0 0 1px var(--ride); }
.dot.origin { background: var(--origin); border: 2px solid #fff; box-shadow: 0 0 0 1px var(--origin); }

/* station dots + arrowheads (divIcons; fill/rotate set inline by JS) */
.cb-station { border-radius: 50%; background: var(--ride); border: 2px solid #fff; box-shadow: 0 1px 3px rgba(16,32,46,0.4); }
.cb-arrow {
  position: absolute; top: 50%; left: 50%; width: 0; height: 0;
  border-top: 4px solid transparent; border-bottom: 4px solid transparent;
  border-left: 7px solid var(--ride);
  filter: drop-shadow(0 0 1px rgba(255,255,255,0.7));
}

/* ---------------- range controls ---------------- */
.range-controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.range-controls label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.9rem; font-weight: 600; color: var(--ink-subtle);
}
.range-controls select {
  font: inherit; font-size: 0.92rem; padding: 8px 11px;
  border: 1px solid var(--line-strong); border-radius: 8px; background: #fff; color: var(--ink);
}
.range-controls select:focus-visible { outline: 3px solid var(--cb-blue-line); outline-offset: 1px; border-color: var(--cb-blue); }
.range-summary { font-size: 0.9rem; font-weight: 500; color: var(--ink-subtle); }
#rides-summary { margin-left: auto; }

/* ---------------- top routes table ---------------- */
.routes { margin-top: 24px; }
.routes h3 { margin: 0 0 12px; font-size: 1.05rem; font-weight: 700; color: var(--ink); }
.routes-table {
  width: 100%; border-collapse: collapse; font-size: 0.92rem;
  border: 1px solid var(--line); border-radius: var(--radius-ctrl); overflow: hidden;
}
.routes-table th, .routes-table td { padding: 11px 14px; border-bottom: 1px solid var(--line); text-align: left; }
.routes-table th {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--ink-subtle); font-weight: 700; background: #F5F8FB;
}
.routes-table td.route { font-weight: 600; }
.routes-table td.num, .routes-table th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.routes-table tbody tr { transition: background 120ms ease; }
.routes-table tbody tr:hover { background: var(--cb-blue-tint); }
.routes-table tbody tr:last-child td { border-bottom: none; }

/* ---------------- when-I-ride bar charts ---------------- */
.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 18px; }
.chart h3 { margin: 0 0 14px; font-size: 1.05rem; font-weight: 700; color: var(--ink); }
.chart-wide { margin-top: 24px; }
.chart-first { margin-top: 22px; }
.bars { display: flex; align-items: flex-start; gap: 8px; }
.y-axis { position: relative; width: 24px; height: 120px; flex: none; }
.y-tick {
  position: absolute; right: 0; transform: translateY(50%);
  font-size: 0.65rem; line-height: 1; color: var(--ink-subtle); white-space: nowrap;
}
.bars-wrap { position: relative; flex: 1 1 0; min-width: 0; }
.gridlines { position: absolute; left: 0; right: 0; top: 0; height: 120px; pointer-events: none; }
.gridline { position: absolute; left: 0; right: 0; bottom: 0; border-top: 1px solid var(--line); }
.gridline-base { border-top-color: var(--line-strong); }
.bars-row { display: flex; align-items: flex-end; gap: 3px; position: relative; }
.bar { flex: 1 1 0; display: flex; flex-direction: column; align-items: center; min-width: 0; }
.bar-track { width: 100%; height: 120px; display: flex; align-items: flex-end; }
.bar-fill {
  position: relative; width: 72%; margin: 0 auto;
  background: var(--ride); border-radius: 4px 4px 0 0; opacity: 0.88;
  transition: opacity 120ms ease;
}
.bar:hover .bar-fill { opacity: 1; }
.bar-value { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); font-size: 0.66rem; font-weight: 700; color: var(--ink); white-space: nowrap; }
.bar-label { margin-top: 6px; font-size: 0.7rem; color: var(--ink-subtle); white-space: nowrap; height: 1em; }
.chart-empty { color: var(--ink-subtle); font-size: 0.9rem; margin: 0; }

/* ---------------- day × hour heatmap ---------------- */
.heatmap { margin-top: 24px; overflow-x: auto; }
.heatmap h3 { margin: 0 0 14px; font-size: 1.05rem; font-weight: 700; color: var(--ink); }
.heat { display: grid; grid-template-columns: 34px repeat(24, 1fr); gap: 2px; align-items: center; min-width: 380px; }
.heat-htick { font-size: 0.62rem; color: var(--ink-subtle); text-align: center; height: 1em; }
.heat-day { font-size: 0.72rem; font-weight: 600; color: var(--ink-subtle); text-align: right; padding-right: 6px; }
.heat-cell { height: 16px; border-radius: 3px; background: #EAEFF4; }
.heat-cell:hover { outline: 1px solid var(--ink); }
.heat-empty { background: #EEF2F6; }
.heat-legend { display: flex; align-items: center; gap: 4px; margin-top: 12px; font-size: 0.72rem; color: var(--ink-subtle); }
.heat-legend i { width: 14px; height: 14px; border-radius: 3px; display: inline-block; }

/* ---------------- footer ---------------- */
footer {
  max-width: 980px; margin: 0 auto; padding: 28px 24px 64px;
  color: var(--ink-subtle); font-size: 0.82rem; line-height: 1.6;
}
footer p { margin: 0; max-width: 90ch; }
footer a { color: var(--cb-blue); font-weight: 600; }

/* ---------------- responsive ---------------- */
@media (max-width: 640px) {
  .hero-top { padding: 14px 18px; }
  .hero-body { padding: 14px 18px 40px; }
  .hero h1 { font-size: 2rem; }
  .hero .sub { font-size: 1.05rem; }
  .brand-sub { display: none; }
  main { padding: 0 18px 40px; }
  .card { padding: 22px 18px; }
  .card:first-child { margin-top: -24px; }
  .section-title h2 { font-size: 1.3rem; }
  #rides-summary { margin-left: 0; flex-basis: 100%; }
  .charts { grid-template-columns: 1fr; }
  #map { height: 380px; }
}